auctex: Unbinding

 
 A.5.4 Which native mode key bindings are missing
 ------------------------------------------------
 
 The following commands from the native commands might still be useful
 when working with AUCTeX, however, they are not accessible with a key
 binding any longer.
 
 '@node' insertion
      The node insertion command, mapped to 'C-c C-c n' in the native
      mode, is not mapped to any key in AUCTeX.  You can still access it
      through the Texinfo menu, though.  Another alternative is to use
      the 'C-c C-m' binding for macro insertion in AUCTeX.
 
 Show the section structure
      The command 'texinfo-show-structure' ('C-c C-s') from the native
      mode does not have a key binding in AUCTeX.  The binding is used by
      AUCTeX for sectioning.